Dokumenttyp/Document type
Sida/Page
1 (2)
Thesis proposal
Titelförslag/Thesis
MSc thesis
proposal title
DOE and Process window for Laser cutting in
Inconel 718 sheet
Ämnesområde/Business area
Materials & Processes
Tidsperiod och högskolepoäng/Period of time and amount of credits
10-20 weeks / 15-30 credits
Antal studenter/Number of students
1-2 students
Geografisk placering/Location
GKN Aerospace Trollhätan Sweden
Kontaktperson/Contact person
Joakim Idetjärn +46520291277
Språk/Language
English
Startdatum/Start date
As soon as possible
Handledare/Supervisor
Joakim Idetjärn +46520291277 (GKN)
Avdelning/Department
9654 Process Engineering
Skicka ansökan till/Send application to
mailto:joakim.idetjarn@gknaerospace.com
Sista ansökningsdag/Last application date
N/A
About us
GKN Aerospace is the aerospace operation of GKN plc, serving a global customer base and operating in North America and Europe. With sales of
£1.5 billion in 2011, the business is focused around three major product areas - aerostructures, engine products and transparencies, plus a
number of specialist products - electro-thermal ice protection, fuel and flotation systems, and bullet resistant glass. The business has significant
participation on most major civil and military programmes. GKN Aerospace is a major supplier of integrated composite structures, offers one of
the most comprehensive capabilities in high performance metallics processing and is the world leading supplier of cockpit transparencies and
passenger cabin windows.
Background of thesis project
In Aerospace the use of cost effective, fast and reliable methods for making parts is very important. Laser cutting is such method where it is
possible to cut complicated shapes and to avoid subsequent machining that are both expensive and time consuming. To be able to use laser
cutting on aerospace components, one must understand how the method impacts the materials and life of the part/product. Multiple factors
influence the final outcome of the parts in laser cutting; cutting speed, nozzle distance, power, gas pressure, type of shielding gas, type of
material, material thickness and heat treatment condition. The purpose of this thesis is to evaluate and design a process window for the laser
cutting in Inconel 718 sheet.
Assignment description
The aim of the thesis is to evaluate and design a process window for laser cutting in Inconel 718 sheet, with respect to structure, properties and
processing, in order to identify potential parameter settings for further work. The work will be carried out at the Material & Process department
at GKN Aerospace Engine Systems in Trollhättan.
Introduction to materials requirements and targeted properties for specific jet engine components
Literature review of Laser cutting process, with focus on the applicability to the selected components
Define the factors for the Design Of Experiment (DOE) regarding laser cutting
o
Cutting parameters
o
Material thickness
o
Gases; Nitrogen, Argon, Oxygen
o
Heat treatment condition
Define the responses for DOE for laser cutting
o
Surface condition
o
Evaluation Metallurgical condition
o
Surface hardness
o
Scanning Electron Microscope evaluation surfaces cut with Nitrogen, Argon and oxygen.
Design of the test plan for the DOE
Run and evaluate the DOE
10125 utg. 24
Target
Create a process window
Report the result
Presentation of the results at GKN Trollhättan
Propose parameters for further work
Propose continued activities beyond the current project
Informationen i detta dokument tillhör GKN Aerospace Sweden AB. Det innehåller konfidentiell
information och får inte - vare sig i ursprunglig eller ändrad form, helt eller delvis –
reproduceras utan skriftligt medgivande från GKN Aerospace Sweden AB, ej heller delges tredje
part eller användas för annat ändamål än för vilket det tillhandahållits. Överträdelse härav
beivras med stöd av gällande lag.
The information contained in this document is GKN Aerospace Sweden AB Proprietary
information and it shall not – either in its original or in any modified form, in whole or in part –
be reproduced, disclosed to a third party, or used for any purpose other than that for which it is
supplied, without the written consent of GKN Aerospace Sweden AB. Any infringement of these
conditions will be liable to legal action.
© Copyright GKN Aerospace Sweden AB. All rights reserved.
Dokdel./Par Bilaga/App Utgåva/Iss Sida/Pag
t no.
endix
ue 1
e 2 (2)
Reg.nr/Reg. No.
Qualifications
Bachelor or Master of Sciences in Manufacturing or Materials Engineering
Knowledge of Laser Cutting is highly desirable.
Knowledge of DOE in Modde is an advantage.
Ansök genom att/Apply by
Contact person for further information: mailto:joakim.idetjarn@gknaerospace.com
Apply by sending your CV and a personal letter to mailto:joakim.idetjarn@gknaerospace.com
Informationen i detta dokument är Volvo Aero Corporations konfidentiella information och får
inte - vare sig i ursprunglig eller ändrad form, helt eller delvis - utan Volvo Aero Corporations
skriftliga medgivande reproduceras, delges tredje part eller användas för annat ändamål än för
vilket det tillhandahållits. Överträdelse härav beivras med stöd av gällande lag.
The information contained in this document is Volvo Aero Corporation Proprietary information
and it shall not – either in its original or in any modified form, in whole or in part – be
reproduced, disclosed to a third party, or used for any purpose other than that for which it is
supplied, without the written consent of Volvo Aero Corporation. Any infringement of these
conditions will be liable to legal action.
© Copyright Volvo Aero Corporation. All rights reserved.